Description

2,3-Pyridinedicarboxylic Anhydride is a versatile heterocyclic building block and reactive intermediate of significant importance in advanced organic synthesis. Its anhydride functionality makes it a key precursor for the preparation of amides, imides, and other derivatives with tailored properties. This high-purity compound is essential for researchers and manufacturers in the pharmaceutical, agrochemical, and specialty chemical industries, enabling the development of novel active ingredients and functional materials.

Application

• Pharmaceutical Intermediate: A critical building block for the synthesis of complex drug molecules, particularly those containing the pyridine core, such as kinase inhibitors and other bioactive compounds.
• Agrochemical Synthesis: Used in the production of advanced herbicides, fungicides, and insecticides, where its structure contributes to efficacy and selectivity.
• Ligand and Chelating Agent Precursor: Serves as a starting material for synthesizing polydentate ligands used in catalysis and metal complexation.
• Polymer and Material Science: Employed in the creation of polyimides, polyamides, and other high-performance polymers with enhanced thermal and mechanical properties.
• Organic Synthesis Reagent: Utilized in various condensation and ring-opening reactions to introduce the 2,3-pyridinedicarboxylic acid moiety into target molecules.
• Research and Development: A valuable compound for academic and industrial R&D in medicinal chemistry and chemical biology for exploring new molecular entities.

Basic Information

Product Name	2,3-Pyridinedicarboxylic Anhydride
CAS No.	699-98-9
Molecular Formula	C7H3NO3
Molecular Weight	149.10 g/mol
Synonyms	2,3-Pyridinedicarboxylic Acid Anhydride; Quinolinic Anhydride; 2,3-Pyridinedicarboxylic Anhydride; 2,3-Pyridinecarboxylic Anhydride; 1H-Pyrrolo[3,4-b]pyridine-1,3(2H)-dione; Pyridine-2,3-dicarboxylic Anhydride; 2,3-Dicarboxypyridine Anhydride
EINECS	211-835-9

Quality Control

Our 2,3-Pyridinedicarboxylic Anhydride is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, residual solvent analysis, and identification by FT-IR and NMR. A Certificate of Analysis (COA) detailing all specifications and test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive); keep the container tightly sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Melting Point	158°C - 162°C
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals (as Pb)	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.